package com.itheima.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.itheima.reggie.common.R;
import com.itheima.reggie.entity.User;
import com.itheima.reggie.service.UserService;
import com.itheima.reggie.utils.SMSUtils;
import com.itheima.reggie.utils.ValidateCodeUtils;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpServletRequest;
import java.util.Map;
import java.util.concurrent.TimeUnit;

/**
 * Created with IntelliJ IDEA.
 * User: zjz
 * Date: 2022/07/31 15:28
 * Description:
 * Version: V1.0
 */
@RestController
@RequestMapping("/user")
@Slf4j
public class UserController {

    @Autowired
    private UserService userService;

    @Autowired
    private RedisTemplate redisTemplate;


    /**
     * 发送手机短信验证码的短信
     * @param user
     * @return
     */
    @PostMapping("/sendMsg")
    public R<String> sendMsg(@RequestBody User user , HttpServletRequest request){
        //获取手机号
        String phone = user.getPhone();

        //不为空
        if (StringUtils.isNoneEmpty(phone)){
            //生成随机4位验证码
            String code = ValidateCodeUtils.generateValidateCode(4).toString();
            log.info("code={}",code);

            //调用阿里云提供的短信服务API完成发送短信
//            SMSUtils.sendMessage("阿里云短信测试","SMS_154950909",phone,code);


            //将生成的验证码保存到Session中
//            request.getSession().setAttribute(phone,code);

            //将生成的验证码缓存到redis中，并且设置有效期为5分钟
            redisTemplate.opsForValue().set(phone,code,5, TimeUnit.MINUTES);


            return R.success("手机短信验证码发送成功 ");
        }
        return R.error("短信发送失败");
    }

    /**
     * 移动端用户登录
     * @param map
     * @param request
     * @return
     */
    @PostMapping("/login")
    public R<User> login(@RequestBody Map map , HttpServletRequest request){
        log.info("map={}",map.toString());

        //获取手机号
        String phone = map.get("phone").toString();

        //获取验证码
        String code = map.get("code").toString();

        //从session中获取保存的验证码
//        Object codeInSession = request.getSession().getAttribute(phone);

        //从redis中获取缓存的验证码
        Object codeInRedis = redisTemplate.opsForValue().get(phone);

        //验证码的比对(页面提交的验证码，和保存的验证码进行比对)
        if (codeInRedis != null && codeInRedis.equals(code)){
            //比对成功，说明登录成功
            //判断当前手机号对应的用户是否为新用户
            LambdaQueryWrapper<User> lambdaQueryWrapper = new LambdaQueryWrapper<>();
            lambdaQueryWrapper.eq(User::getPhone,phone);
            User user = userService.getOne(lambdaQueryWrapper);
            //如果是新用户，则自动完成注册
            if (user == null){
                user = new User();
                user.setPhone(phone);
                user.setStatus(1);
                userService.save(user);
            }
            //将用户id保存到session中
            request.getSession().setAttribute("user",user.getId());

            //如果用户登录成功，就从redis中删除缓存的验证码
            redisTemplate.delete(phone);
            return R.success(user);
        }

        //比对失败，说明登录失败

        return R.error("登陆失败");
    }
}
